CAIIB-ABM / BFM- NUMERICALS/CASE STUDIES 1. X wants to borrow Rs. 25000 immediately and another Rs. 20000 after a period of 2 years @ 10% roi. He wants to pay it in monthly installments for 5 years. Calculate the amount of monthly payment. Explanation : Here, First find PV of 20000 for 2 years @ 10%. Here, t = 2*12 = 24 months and r = 10% ÷ 12 = 0.00833 PV = P / (1+R)^T So, PV = 20000 ÷ (1+0.0083)^24 = 16388.07 So, total amount = 25000 + 16388.07 = 41388.07 Now, P = 41388.07, R = 10% ÷ 12 = 0.00833, T = 5 * 12 = 60 months EMI = P * R * [(1+R)^T/(1+R)^T-1)] EMI = (41388.07 * 0.00833) * {(1.0083)^60 ÷ (1.0083)^60 – 1)} = 879
2. A person wants to receive Rs. 1250 every quarter for 5 years @ 12% roi. How much he should invest now? Explanation : Here, P = 1250 R = 12% quarterly = 3% p.a. T = 5 yrs = 20 quarters PV = P / R * [(1+R)^T - 1]/(1+R)^T So, PV = (1250 ÷ 0.03) * (1.0320 – 1) ÷ 1.0320 = 18597
3. Ranjit borrowed an amount of Rs. 50000 for 8 years @ 18% roi. What shall be monthly payment? Explanation : Here, P = 50000 R = 18% = 18 % ÷ 12 = 0.015% monthly T = 8 yrs = 96 months EMI = P * R * [(1+R)^T/(1+R)^T-1)] EMI = 50000 * 0.015 * 1.01596 ÷ (1.01596 – 1 = 986
4. Ajit wants to receive Rs. 40000 p.a. for 20 years by investing @ 5%. How much he will have to invest now? Explanation : Here, P = 40000 R = 5% p.a. T = 20 yrs PV = P / R * [(1+R)^T - 1]/(1+R)^T PV = (40000 ÷ 0.05) * {(1.0520 – 1) ÷ 1.0520} = 498489
5. Asha wants to receive a fixed amount for 15 years by investing Rs. 9 lacs @ 9% roi. How much she will receive annually? Explanation : Here, P = 9 lac R = 9% p.a. T = 15 yrs EMI = P * R * [(1+R)^T/(1+R)^T-1)] EMI = 900000 * 0.09 * 1.0915 ÷ (1.0915 – 1) = 111653
6. A firm needs Rs. 170000 to replace its machinery at the end of 5 years. At 12% roi, how much it should contribute every month? Explanation : Here, FV = 170000 R = 12% p.a. = 0.01% monthly T = 5 Y = 60 months (Here, the firm has to contribute monthly, so we have converted rate and time to monthly equivalent values) FV, if invested at end of each month / year, is: FV = P / R * [(1+R)^T - 1] 170000 = P * (1.0160 -1) ÷ 0.01 170000 = P * 81.66967 P = 170000 / 81.66967 = 2082
7. For carrying out his studies, a student borrows Rs. 3 lac from a bank at concessional rate of 5% p.a. for 4 years of his professional course. What is the total amount payable by him at the end of the 4th year? Explanation : Here, P = 3 lac R = 5% p.a. T = 4 yrs FV = P / R * [(1+R)^T - 1] FV = 300000*(1.054 – 1) ÷ 0.05 = 1293038
8. X wants to send his daughter to a management school after 5 years and will need onetime payment of charges amounting to Rs. 7 lac. At 12% roi, how much he should invest annually? Explanation : Here, FV = 7 lac R = 12% p.a. T = 5 yrs FV = P / R * [(1+R)^T - 1] 700000 = P * (1.125 – 1) ÷ 0.12 700000 = P * 6.352847 P = 110187
9. X opened a recurring account with a bank to deposit Rs. 16000 by the end of each year @ 10% roi. How much he would get at the end of 3rd year? Explanation : Here, P = 16000 R = 10% p.a. T = 3 yrs FV = P / R * [(1+R)^T - 1] FV = 16000 * (1.13 – 1) ÷ 0.1 = 52960
10. Alka borrowed Rs. 65600 for 2 years at 5% p.a., to be returned in 2 equal installments. What is the amount of installment? Explanation : Here, P = 65600 R = 5% p.a. T = 2 yrs EMI = P * R * [(1+R)^T/(1+R)^T-1)] EMI = 65600 × 0.05 × 1.052 ÷ (1.052 – 1) = 35280
11. Amrita obtained a loan of Rs. 92820 @ 10%, which he has to pay in 4 equal annual installments. Calculate the amount of installment? Explanation : Here, P = 92820 R = 10% p.a. T = 4 yrs EMI = P * R * [(1+R)^T/(1+R)^T-1)] EMI = 92820 × 0.1 × 1.14 ÷ (1.14– 1) = 29282
12. The compound interest on a sum for 2 years is Rs. 153 and simple interest is 225 for 3 years. What are the roi & the principal amount? Explanation : Let, principal amount = P, ROI = R, simple interest = SI, compound interest = CI SI for 3 years = 225, so SI for 2 years = 150 CI for 2 years = 153, so difference of Rs. 3 = interest for Rs. 75 (225-150) So, R = 3/75 *100 = 4% P = (SI × 100) ÷ (R×T) = (225×100) ÷ (4×3) = 1875
13. X purchased a house and payment terms are - Rs. 10 lac immediately and balance Rs. 7.50 lac after 2 years. The roi is 6% p.a. and to be compounded semi-annually. What is the cash value of the house? Explanation : Here, PV of Rs. 7.50 lac = 750000 ÷ 1.034 = 666370 So, total cash value = 10 lacs + 666370 = Rs. 16,66,370
14. X had to pay certain amount to z and had 2 options - a) to make payment of lump sum amount of Rs. 120000 immediately or b) to pay Rs. 150000 in 5 years @ 5% p.a. roi (halfyearly compounding). Which option is more beneficial for x? a. Option a b. Option b c. Both are equal d. None of the above Ans - b Explanation : If X goes with option b, PV = 150000 ÷ 1.0255×2 = 117180 which is < 120000. So, option b is more beneficial for X.
15. You will be receiving Rs. 204000 at the end of each year for the next 20 years. If the current discount rate for such a stream of cash is 10%, find the present value of cash flow. Explanation : Here, Since 204000 is like EMI. So, to find P, we use the formula of EMI EMI = P * R * [(1+R)^T/(1+R)^T-1)] 204000 = P × 0.1 × 1.1^20 ÷ (1.120 – 1) 204000 = P × 0.1174596 P = 1736767
16. You are receiving Rs. 10000 every year for the next 5 years (at the end of the period) and you invest each payment @ 5%. How much you would have at the end of the 5-year period? Explanation : Here, P = 10000 R = 5% p.a. T = 5 yrs If invested at the end, FV = P / R * [(1+R)^T - 1] FV = 10000 × (1.05^5 – 1) ÷ 0.05 = 55256